RAM Mount Yoke Clamp Mount w/X-Grip II [RAM-B-121-UN8U]

Yoke Clamp Base w/X-Grip IIPart #: RAM-B-121-UN8BThe yoke clamp base will fit rails in diameter from 0.625″ to a maximum of1.25″. The 1″ rubber ball is at a right angle to the plane of the mount;when connected to a rail, the ball sits parallel to the rail.X-Grip II consists of a spring loaded holder and 1″ rubber ball connected to the back of the base. Included are extra easy access grip knobs, located on the back of the holder for quick release of your tablet. It expands and contracts for perfect fit of most 7″ tablets. Please verify dimensions of your tablet below for compatibility with the X-Grip II.Compatible Devices:
Amazon Kindle
Archos 7
Asus EEE Pad Memo
Barnes & Noble NOOKcolor
BlackBerry PlayBook
Dell Streak 7
HTC Flyer
Samsung Galaxy Tab (7″ version)
Holder Dimensions: 
Minimum Width = 2.25″(Devices 2.25″ in width must be a minimum of 7″ in height to fit)
Maximum Width = 5.75″
Depth = 0.875″
Features:
1. Spring loaded holder expands and contracts for perfect fit of your tablet
2. Rubber coated tips will hold your tablet firm and stable
3. Versatility of holder allows for attachment to many RAM-to-RAM ball and 1″ socket mounts
4. Socket technology allows for multiple adjustment angles and articulation of your tablet
5. Easy access grip knobs, located on the back of the holder for quick release of your tablet
Material:High Strength Composite, Rubber Tips and Powder Coated Marine Grade Aluminum